Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
hieu lang » chieu sang, hieu quang, nhieu tang
trung cap » truong cao, trung tam
hoc hieu » hoc thieu, hoc hien, doc hieu
trong ca » trong cac, trong nha
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu lang - hanh ((trung cap) or (trong ca)) nhung huong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu lang - hanh ((trung cap) OR (trong ca)) nhung huong dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - hanh ((trung cap) or (trong ca)) nhung huong dan than ban*.